Hoyas like to wait. People say they like to be root bound, I think they just like to be unbothered for a long time. I said the same thing a year ago and now I have three that bloom regularly. My lacunosa has bloomed a week a month for the past 4 months.
Lucky duck. I had two hoya blooms starting this year... and both fell off before they bloomed. They appear to be super fragile, ceiling fan blew one of them off, the other got knocked off when I was spraying it for fungus gnats.